Dumbbell



FIG. 1 is a perspective view of a dumbbell according to the design of the invention.

FIG. 2 is a top view of one of the two weights from the dumbbell. The top plan view of the second dumbbell is identical thereto.

FIG. 3 is a front view of one of the two weights, the front and rear views for both weight ends being identical thereto.

FIG. 4 is a bottom view of one of the two weights, the bottom view of the second weight end being identical thereto.

FIG. 5 is a view of the outer end of the dumbbell, both outer ends being identical; and,

FIG. 6 is a view of the inner end of one of the two weights, the appearance being identical for both weights.

The handle of the dumbbell is shown in broken lines because it forms no part of the claimed design. 

CLAIM The ornamental design for a dumbbell, as shown and described. 